Norton Commando Exhaust Pipe Split-Collar (1) 06-3990 - 750 / 850 To 1974

New Norton Commando 750 / 850 exhaust pipe split collars. Collars are sold each and are made in England to replace Norton part number 06-3990 & 063990

Collars fit on the ends of your Norton 750 / 850 header pipes.. once installed the collars get pushed into the cylinder head exhaust port. Fits the Norton 750 & 850 models up to 1974 (PRE-MKIII). Check your parts book to ensure the best fitment.